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In Illinois

If you require your Employer Identification Number (EIN) for your business in Illinois, you may be wondering how to perform an EIN lookup. This can be done in several ways, the easiest method being by looking over previous tax returns. For more information on how to perform an EIN lookup in Illinois, keep reading this easy-to-follow guide.

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EIN Basics

How Do EIN Numbers Work In Illinois?

An EIN, or an Employer Identification Number, is a nine-digit number given to businesses in all states by the Internal Revenue Service (IRS). It is there mainly to help identify a business operating in the United States for tax purposes. You can think of it as a Social Security number given to individuals but for corporations and other companies.

Your business’s EIN is mainly used by the IRS to ensure you’re meeting the right tax obligations, such as paying them and filing any relevant returns. It can also be used for several other reasons, such as hiring people to work for you or opening a business bank account with a financial institution.

Various groups need an EIN in the state of Illinois, and these include businesses, nonprofit organizations, and larger corporations. If you’re a sole proprietor who isn’t looking to incorporate your business, you can use your Social Security number instead.

What is an EIN number?

An EIN, or an Employer Identification Number, is a nine-digit number given to businesses in all states by the Internal Revenue Service (IRS). It is there mainly to help identify a business operating in the United States for tax purposes. You can think of it as a Social Security number given to individuals but for corporations and other companies.

Your business’s EIN is mainly used by the IRS to ensure you’re meeting the right tax obligations, such as paying them and filing any relevant returns. It can also be used for several other reasons, such as hiring people to work for you or opening a business bank account with a financial institution.

Various groups need an EIN in the state of Illinois, and these include businesses, nonprofit organizations, and larger corporations. If you’re a sole proprietor who isn’t looking to incorporate your business, you can use your Social Security number instead.

How do I look up the EIN for my Illinois company?

If you’re on the hunt for your EIN for your Illinois company, then there are several methods you can use to track this information down. The easiest thing to do is to look at any of the documentation you might have submitted to the IRS during your last tax return. It’s mandatory for you to quote your Illinois company’s EIN on this paperwork; therefore, it should appear on these items of paperwork.

However, not everyone keeps these documents on record and often gives them to an accountant to file away safely. If this is the case, you should contact the IRS directly. Those in search of their EIN for their Illinois company can phone the Business & Specialty Tax Line at 800-829-4933. Although the wait times are usually quite extensive, they will give you your EIN over the phone after asking a few simple questions.

Finally, you can ask a professional EIN service to perform an Illinois company EIN lookup, which will save you time and will likely have your EIN back to you in a few hours or less.

Why do we use EINs?

EINs, or Employer Identification Numbers, serve several purposes. First, they are used for tax identification, allowing the IRS to track and process tax obligations. When starting a business, obtaining an EIN is often required for business registration. Finally, employers use EINs for employment and payroll purposes, including reporting taxes and issuing necessary forms.

Financial institutions require an EIN to open a business bank account and differentiate personal and business finances. EINs are also needed for obtaining licenses and permits from state and local governments. In addition, they facilitate business credit establishment and are often necessary for legal and compliance purposes, such as filing for tax-exempt status or participating in government contracts.

What about other companies’ EINs in Illinois?

Obtaining another company’s Employer Identification Number through an EIN lookup in Illinois can be challenging due to privacy and confidentiality concerns. EINs are generally not publicly available, but several avenues exist.

The EIN may be included in contracts or agreements if you have a business relationship with the company. You can also contact the company directly, explaining your legitimate reason for needing their EIN, although they may be unwilling to share it due to privacy considerations.

How to get an EIN in Illinois

To get an EIN in Illinois, visit the IRS website, complete the online application, download Form SS-4, and submit it by mail or fax. Provide necessary information about your business, such as its legal name, address, and structure.

In addition, include details about the responsible party and their Social Security number. Once processed, you will receive your EIN immediately (online application) or within a few weeks (by mail or fax). Ensure the accuracy of your information and keep the EIN in a secure place for future use.

EINs Are Used For
Open A Bank Account
Most financial institutions require an EIN to open a business checking or savings account.
Apply For Business Permits
State and local licensing authorities use your EIN to identify your business entity.
File A Tax Return
The IRS requires an EIN on all business tax returns, including 1099 forms.
Hire Employees
Any business that pays wages to employees must have an EIN for payroll tax reporting.
Tax ID Comparison

Illinois State Tax ID vs Federal EIN

Generally speaking, an Illinois State Tax ID is the same thing as a Federal EIN. They are both used by the IRS for Illinois businesses, for employee identification and tax designation. The main difference is that a State Tax ID determines whether a business entity is required to pay state business tax.

Purpose Federal EIN Illinois State Tax ID
File a Tax Return Yes Yes
Open a Bank Account Yes No
Apply for Business Permits Yes Sometimes
Hire Employees Yes Yes
Employee Income Tax Withholding No Yes
Sales Tax Exemption Permits No Yes
Issued by IRS (Federal) Illinois Dept. of Revenue
Requirements

Who Needs An EIN In Illinois?

Most types of Illinois businesses require an EIN number. Some entity types can use a Social Security Number instead, but an EIN is strongly recommended for all businesses.

Businesses That Require an EIN
  • Corporations
  • Partnerships
  • LLCs (limited liability companies)
  • Sole Partnerships
  • Small Businesses
  • New Businesses
Non-Profits and Foundations

Tax-exempt organizations such as non-profits or private foundations need to apply for an EIN number if they have employees. The Employment Development Department allocates unemployment insurance, disability insurance, and paid family leave programs, and businesses with employees must register with them for tax purposes.

Entities That May Use an SSN Instead
  • Sole Proprietorship (sole proprietor)
  • LLC (with no employees)
How to Look Up a Business License in Illinois

You can find business license information for any Illinois business entity by performing a search on the Secretary of State website of the state or province where that corporation is registered.

Application Process

How To Apply For An EIN In Illinois

The easiest way to obtain an EIN number is through the online application portal on the IRS website. Alternatively, you can apply through telephone, fax, or mail.

01
Prepare Your Information

A Form SS-4 is mandatory for all EIN applications and must include your legal company name, mailing address, type of business, and reason for applying.

02
Apply Online via the IRS

Visit the IRS website and use the online EIN application portal. The IRS Assistance Tool will guide you through the process. Results are issued immediately upon completion.

03
Register with Illinois Dept. of Revenue

To apply for an EIN in Illinois, ensure eligibility based on your business activities. Gather required information like legal name, structure, responsible party’s details, and business address. Choose an application method:

  1. Online Application (Preferred Method): Visit the IRS website and navigate to the EIN Assistant page. Choose the “Apply online now” option and complete the online application form. Once you submit the form, you will receive your EIN immediately.
  2. Fax Application: Download Form SS-4, the Application for Employer Identification Number, from the IRS website. Fill out the form with the required information and fax it to the appropriate IRS fax number provided on the form. The EIN will be faxed to you within a few business days.
  3. Mail Application: Similarly, you can download Form SS-4 and complete it with the required details. Mail the form to the appropriate IRS address as specified in the instructions. The EIN will be sent to you by mail within a few weeks.
  4. Phone Application: Contact the IRS Business and Specialty Tax Line at 1-800-829-4933 to apply for an EIN over the phone. An IRS representative will guide you through the application process, and once approved; they will provide you with the EIN.

Apply with accurate information. Once processed, record your EIN for future use.

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